Deck 48: General Dentistry

Question 1

Which of the following statements is true?

A)The class V restoration is defined as a pit and fissure restoration.
B)The class V lesion occurs on the incisal third of the facial and lingual surface of any tooth.
C)The class V lesion is prepared by having a smooth surface outline with angles.
D)The class V lesion location will determine the type of restorative material selected.

Answer 1

The class V lesion location will determine the type of restorative material selected.

Question 2

Operative dentistry is the primary responsibility of the:

A)oral surgeon.
B)periodontist.
C)general dentist.
D)endodontist.

Answer 2

general dentist.

Question 3

When one or both of the proximal surfaces are removed during a restoration,there is no support to hold the material in place,so a _______ must be used to replace these walls during the procedure.

A)cavity wall
B)line angle
C)resistance form
D)matrix system

Answer 3

matrix system

Question 4

An example of esthetic dentistry includes:

A)veneer.
B)teeth bleaching.
C)dentures.
D)both a and b.

Question 5

Which of the following statements is true of retention pins?

A)In general, three pins are inserted to replace each missing cusp.
B)The retention pin has deep threads that grip the dentin when screwed into tooth structure.
C)Pins are always 0.023 mm in diameter and extend 2 mm into tooth structure.
D)Pins are placed into the root canal of the tooth.

Question 6

A comprehensive class II restoration may involve as many as _____ surfaces of a tooth.

A)one
B)two
C)three
D)four

Question 7

Esthetic dentistry is primarily devoted to improving the appearance of teeth,by either restoring imperfections with direct and indirect restorative materials,or with the use of:

A)whitening techniques.
B)endodontic therapy.
C)stainless steel crowns.
D)silver amalgam.

Question 8

Tooth whitening or vital bleaching is not indicated for a dental patient when the patient presents with:

A)severe tetracycline and fluorosis stains.
B)extrinsic stains from foods, cigarette smoking, coffee, or tea.
C)aged teeth.
D)intrinsic stains, such as mild tetracycline stains or mild fluorosis.

Question 9

A veneer is applied to the _____ surface of a prepared tooth.

A)incisal
B)facial
C)mesial
D)distal

Question 10

Complete the statement: "When completing a permanent restoration,the dentist should have knowledge of:

A)the size and position of the pulp of the tooth."
B)the crown as it relates to the pulp of the tooth."
C)where the body of the tooth lies."
D)the directions of the enamel spindles."

Question 11

Class II restorations are found on:

A)anterior teeth.
B)posterior teeth.
C)canines.
D)incisors.

Question 12

An example of a restorative dental procedure is a(n):

A)veneer.
B)teeth bleaching.
C)amalgam.
D)cavity.

Question 13

The usual material of choice for class III and class IV restorations is:

A)composite resin.
B)amalgam.
C)glass ionomer.
D)ceramic.

Question 14

A class I restoration involves ___ tooth surface(s).

A)one
B)two
C)three
D)four

Question 15

A step in the final cavity preparation is:

A)placing retention forms.
B)designing the cavity walls.
C)placing a desensitizing or lining agent.
D)placing the intermediate restorative material.

Question 16

Decay that involves the lingual pit of a maxillary incisor is a class:

A)V.
B)II.
C)CHOICE BLANK
D)IV.
E)cHOICE BLANK

Question 17

______ form of cavity preparation is when the dentist determines the primary shape and placement of cavity walls.

A)Outline
B)Resistance
C)Retention
D)Convenience

Question 18

The dental assistant's role during a permanent restorative procedure is to:

A)determine the types of materials to be used for the restoration.
B)provide moisture control by using the high-velocity suction.
C)check occlusion of the restoration.
D)administer local anesthetic.

Question 19

The dental assistant's responsibilities in a restorative procedure include:

A)evaluating the tooth to be restored.
B)administering local anesthesia.
C)determining the type of dental materials to be used.
D)preparing, mixing, and transferring dental materials.

Question 20

Usually _____ material is selected for the permanent restoration of a class I lesion.

A)composite
B)amalgam
C)veneer
D)crown

Question 21

The purpose of a veneer is to ______ teeth.

A)improve the appearance of anterior
B)improve alignment of
C)close spaces between
D)all of the above

Question 22

Which of the following is not an expanded function for a dental assistant?

A)Place a base and cavity liner.
B)Retract the patient's cheek as necessary.
C)Place matrix band and wedge.
D)Place a bonding agent.

Question 23

During a class III or IV restoration,the dentist may use a _________ to help reproduce the correct contours and contact.

A)Tofflemire matrix system
B)Mylar matrix system
C)universal matrix system
D)gingival retraction cord

Question 24

One of the most important considerations when a dentist is restoring a class V is the:

A)size of the lesion.
B)nearness of the lesion to the gingiva.
C)type of material the dentist will use.
D)placement of the gingival cord.

Question 25

A temporary restoration that can be placed in any tooth or surface for a short period of time is also known as a(an) _________ restoration.

A)intermediate
B)permanent
C)conservative
D)comprehensive

Question 26

Brush-on whitening:

A)can cause blotches on the teeth if not used properly.
B)is as effective as other tooth-whitening methods.
C)is inhibited by saliva.
D)both a and c.

Question 27

Which statement is not true concerning tooth whitening?

A)Tooth whitening can be achieved using over-the-counter products.
B)Tooth whitening is permanent.
C)Tooth whitening can have some adverse effects on the teeth.
D)The main ingredient for whitening products is peroxide or a form of peroxide.

Question 28

Class III restorations involve the interproximal surfaces of _____ and _____.

A)incisors; canines
B)canines; premolars
C)premolars; molars
D)incisors; premolars

Question 29

The internal surface of a cavity preparation is the:

A)axial wall.
B)cavity wall.
C)pulpal wall.
D)line angle.

Question 30

Which statement is not true concerning veneers?

A)Veneers have an unlimited lifespan.
B)Veneers may discolor, wear, or chip over a period of time.
C)Good oral hygiene is essential to keep the margins free of plaque and decay.
D)Veneers can be cracked by biting into hard surfaces such as ice.

Question 31

Lesions of class V decay usually occur on the ____ third of the smooth surface of a tooth.

A)gingival
B)occlusal
C)incisal
D)facial

Question 32

Which statement is true?

A)If loss of tooth structure becomes greater than the remaining tooth structure, the tooth is nonrestorable.
B)When using retention pins, one pin is placed for each missing cusp.
C)Retention pins are screwed into the pulp of the tooth for greater support.
D)Retention pins are available in varying lengths and types of metals.

Question 33

The fastest way to whiten teeth is:

A)in-office treatment.
B)at-home treatment.
C)brush-on whitening methods.
D)using trays with bleaching gel.

Question 34

The pulpal floor is also known as the _____ wall.

A)enamel
B)dentinal
C)external
D)pulpal

Question 35

During a class III restoration,the dentist will enter the tooth from the _____ surface to minimize the size of the restoration.

A)mesial
B)distal
C)lingual
D)facial